Surprised to find some soft tissue inside, scientists, according to the New York Times, have managed to retrieve some proteins from the thigh bone of "a well-preserved Tyrannosaurus rex" excavated in 2003. It was previously thought impossible to get organic matter from material that old because minerals from the fossilization process destroyed the proteins.
The successful effort may "open the door for the first time to the exploration of molecular-level relationships of ancient, extinct animals, instead of just relying on their skeletal remains."
Other than that it's no big deal. You'll need to register - it's free - to read the Times article.